Hakala; David F.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Hakala; David F..The latest application filed is for "brush core and brush driving method".
- Hakala; David F. - El Dorado Hills CA US
- Hakala; David F. - Indianapolis IN
- Hakala; David F. - Lancaster PA
| Patent | Date |
|---|---|
| Brush core and brush driving method Grant 9,524,886 - Kobetsky , et al. December 20, 2 | 2016-12-20 |
| Brush Core And Brush Driving Method App 20100288305 - Kobetsky; Robert G. ; et al. | 2010-11-18 |
| Process for treating high-density information disc recording substrates Grant 4,469,563 - Hakala September 4, 1 | 1984-09-04 |
| Method for producing CRT screen structure Grant 4,255,504 - Hakala March 10, 1 | 1981-03-10 |
| SEC | 0001301022 | HAKALA DAVID F |
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